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Amazon Delta
Amazon Delta ('' pt, delta do Amazonas'' is a huge river delta formed by the Amazon River and Tocantins River (through the Pará River distributary channel), in northern South America. It is located in the Brazilian states of Pará and Amapá and encompasses the Marajó Archipelago, in Pará, whose largest representative is the Marajó island. The main cities located in the vicinity are Belém and Macapá Macapá () is a city in Brazil with a population of 512,902 (2020 estimation). It is the capital of Amapá state in the country's North Region. It is located on the northern channel of the Amazon River near its mouth on the Atlantic Ocean. The c ... (both with their respective metropolitan regions). References {{reflist River deltas Geography of South America ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
River Delta
A river delta is a landform shaped like a triangle, created by deposition (geology), deposition of sediment that is carried by a river and enters slower-moving or stagnant water. This occurs where a river enters an ocean, sea, estuary, lake, reservoir, or (more rarely) another river that cannot carry away the supplied sediment. It is so named because its triangle shape resembles the Greek letter Delta. The size and shape of a delta is controlled by the balance between watershed processes that supply sediment, and receiving basin processes that redistribute, sequester, and export that sediment. The size, geometry, and location of the receiving basin also plays an important role in delta evolution. River deltas are important in human civilization, as they are major agricultural production centers and population centers. They can provide Coast, coastline defense and can impact drinking water supply. They are also Ecology, ecologically important, with different species' assemblages ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amazon River
The Amazon River (, ; es, Río Amazonas, pt, Rio Amazonas) in South America is the largest river by discharge volume of water in the world, and the disputed longest river system in the world in comparison to the Nile. The headwaters of the Apurímac River on Nevado Mismi had been considered for nearly a century as the Amazon basin's most distant source, until a 2014 study found it to be the headwaters of the Mantaro River on the Cordillera Rumi Cruz in Peru. The Mantaro and Apurímac rivers join, and with other tributaries form the Ucayali River, which in turn meets the Marañón River upstream of Iquitos, Peru, forming what countries other than Brazil consider to be the main stem of the Amazon. Brazilians call this section the Solimões River above its confluence with the Rio Negro forming what Brazilians call the Amazon at the Meeting of Waters ( pt, Encontro das Águas) at Manaus, the largest city on the river. The Amazon River has an average discharge of about – ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tocantins River
The Tocantins River ( pt, Rio Tocantins, link=no , , Parkatêjê dialect, Parkatêjê: ''Pyti'' [pɨˈti]) is a river in Brazil, the central fluvial artery of the country. In the Tupi language, its name means "toucan's beak" (''Tukã'' for "toucan" and ''Ti'' for "beak"). It runs from south to north for about 2,450 km. It is not really a branch of the Amazon River, since its waters flow into the Atlantic Ocean alongside those of the Amazon. It flows through four Brazilian states (Goiás, Tocantins, Maranhão and Pará) and gives its name to one of Brazil's newest states, formed in 1988 from what was until then the northern portion of Goiás. The Tocantins is one of the largest Clearwater river (river type), clearwater rivers in South America. Course It rises in the mountainous district known as the Pirineus State Park, Pireneus, west of the Federal District, but its western tributary, the Araguaia River, has its extreme southern headwaters on the slopes of the Serra dos Cai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pará River
The Pará River (), also called Parauaú River, Jacaré Grande River, Marajó River Channel, Macacos River Channel, Ribeirão Santa Maria, Santa Maria River Channel and Bocas Bay, is a watercourse and immense Estuary, estuarine complex that functions as a canal between the rivers Amazon River, Amazon (Amazon delta), Tocantins River, Tocantins, Campina Grande (or Pacajá River, Portel Bay) and Marajó Bay, in addition to numerous other smaller rivers. It can also be considered a distributary channel of the Tocantins River. It is located in the state of Pará, Brazil. It presents muddy and turbid waters, rich in sediments originating from its source rivers. Runs for approximately , around the west and south of the island of Marajó. Belém, the state capital of Pará, is located near the south bank of the river. Previously academic research has come to consider this watercourse as a distributary channel of the Amazon River. However, this statement is currently considered unlikel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South America
South America is a continent entirely in the Western Hemisphere and mostly in the Southern Hemisphere, with a relatively small portion in the Northern Hemisphere at the northern tip of the continent. It can also be described as the southern subregion of a single continent called America. South America is bordered on the west by the Pacific Ocean and on the north and east by the Atlantic Ocean; North America and the Caribbean Sea lie to the northwest. The continent generally includes twelve sovereign states: Argentina, Bolivia, Brazil, Chile, Colombia, Ecuador, Guyana, Paraguay, Peru, Suriname, Uruguay, and Venezuela; two dependent territories: the Falkland Islands and South Georgia and the South Sandwich Islands; and one internal territory: French Guiana. In addition, the ABC islands of the Kingdom of the Netherlands, Ascension Island (dependency of Saint Helena, Ascension and Tristan da Cunha, a British Overseas Territory), Bouvet Island ( dependency of Norway), Pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard University
Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher learning in the United States and one of the most prestigious and highly ranked universities in the world. The university is composed of ten academic faculties plus Harvard Radcliffe Institute. The Faculty of Arts and Sciences offers study in a wide range of undergraduate and graduate academic disciplines, and other faculties offer only graduate degrees, including professional degrees. Harvard has three main campuses: the Cambridge campus centered on Harvard Yard; an adjoining campus immediately across Charles River in the Allston neighborhood of Boston; and the medical campus in Boston's Longwood Medical Area. Harvard's endowment is valued at $50.9 billion, making it the wealthiest academic institution in the world. Endowment inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NASA
The National Aeronautics and Space Administration (NASA ) is an independent agency of the US federal government responsible for the civil space program, aeronautics research, and space research. NASA was established in 1958, succeeding the National Advisory Committee for Aeronautics (NACA), to give the U.S. space development effort a distinctly civilian orientation, emphasizing peaceful applications in space science. NASA has since led most American space exploration, including Project Mercury, Project Gemini, the 1968-1972 Apollo Moon landing missions, the Skylab space station, and the Space Shuttle. NASA supports the International Space Station and oversees the development of the Orion spacecraft and the Space Launch System for the crewed lunar Artemis program, Commercial Crew spacecraft, and the planned Lunar Gateway space station. The agency is also responsible for the Launch Services Program, which provides oversight of launch operations and countdown management f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pará
Pará is a Federative units of Brazil, state of Brazil, located in northern Brazil and traversed by the lower Amazon River. It borders the Brazilian states of Amapá, Maranhão, Tocantins (state), Tocantins, Mato Grosso, Amazonas (Brazilian state), Amazonas and Roraima. To the northwest are the borders of Guyana and Suriname, to the northeast of Pará is the Atlantic Ocean. The capital and largest city is Belém, which is located at the mouth of the Amazon. The state, which is home to 4.1% of the Brazilian population, is responsible for just 2.2% of the Brazilian GDP. Pará is the most populous state of the North Region, Brazil, North Region, with a population of over 8.6 million, being the ninth-most populous state in Brazil. It is the second-largest state of Brazil in area, at , second only to Amazonas (Brazilian state), Amazonas upriver. Its most famous icons are the Amazon River and the Amazon Rainforest. Pará produces Natural rubber, rubber (extracted from natural rubber tree ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amapá
Amapá () is one of the 26 states of Brazil. It is in the northern region of Brazil. It is the second least populous state and the eighteenth largest by area. Located in the far northern part of the country, Amapá is bordered clockwise by French Guiana to the north, the Atlantic Ocean to the east, Pará to the south and west, and Suriname to the northwest. The capital and largest city is Macapá. The state has 0.4% of the Brazilian population and is responsible for only 0.22% of the Brazilian GDP. In the colonial period the region was called Portuguese Guiana and was part of Portuguese Empire, Portugal's State of Brazil. Later, the region was distinguished from the other The Guianas, Guianas. Amapá was once part of Pará, but became a separate territory in 1943, and a state in 1990. The dominant feature of the region, and 90 percent of its total area, is the Amazon Rainforest. Unexplored forests occupy 70 percent of Amapá, and Tumucumaque Mountains National Park, establish ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marajó Archipelago
Marajó Archipelago ('' pt, arquipélago do Marajó'' is the largest fluvial-maritime archipelago on Earth. Located in the states of Amapá and Pará, in Brazil, it is formed by about 2,500 islands. The main island of the archipelago also has the name of Marajó, having about 42,000 km² of area, considered, due to its size, as the largest coastal island in Brazil, extending from the mouth of the Amazon River, between the Line of the Equator and the parallel 1.55º south latitude and, in the E/W direction between the meridians 47º and 53º west longitude, until the Atlantic Ocean. The aquatic and forming limits of the archipelago are: the Atlantic Ocean (north); the Marajó Bay (east); the Pará River estuary complex (south), and; the Amazon delta (west). Most important islands The largest and most important islands include: *Marajó Island: the largest and most populated of the islands; * Grande de Gurupá Island; * Island of Franco; * Island of Brique; * Island of Fla ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marajó Island
Marajó () is a large coastal island in the state of Pará, Brazil. It is the main and largest of the islands in the Marajó Archipelago. Marajó Island is separated from the mainland by Marajó Bay, Pará River, smaller rivers (especially Macacos and Tajapuru), Companhia River, Jacaré Grande River, Vieira Grande Bay and Atlantic Ocean. From approximately 400 BC to 1600 AD, Marajó was the site of an advanced Pre-Columbian society called the Marajoara culture, which may have numbered more than 100,000 people at its peak. Today, the island is known for its large water buffalo population, as well as the ''pororoca'' tidal bore periodically exhibited by high tides overcoming the usual complex hydrodynamic interactions in the surrounding rivers. It is the second-largest island in South America, and the 35th largest island in the world. With a land area of Marajó is comparable in size to Switzerland. Its maximum span is long and in perpendicular width. Geography Marajó ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
